Choose any two digit number (E.g. 37)

Reverse the order of the digits (E.g. 73)

Find the difference between the two numbers (E.g. 73 - 37 = 36)

Repeat this operation for many different two digit numbers. Do you notice any connection between the answers? Can you explain the reason for this connection using algebra?

Tweet | Share |

Topics: Starter

How did you use this starter? Can you suggest
how teachers could present or develop this resource? Do you have any comments? It is always useful to receive
feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.

Click here to enter your comments.

If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:

Excellent, I would like to see more like this

Good, achieved the results I required

Satisfactory

Didn't really capture the interest of the students

Not for me! I wouldn't use this type of activity.

Good, achieved the results I required

Satisfactory

Didn't really capture the interest of the students

Not for me! I wouldn't use this type of activity.

Previous Day | This starter is for | Next Day

More Starters

How did you use this starter? Can you suggest how teachers could present or develop this resource? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world. Click here to enter your comments.

Your access to the majority of the Transum resources continues to be free but you can help support the continued growth of the website by doing your Amazon shopping using the links on this page. Below is an Amazon search box and some items I have chosen and recommend to get you started. As an Amazon Associate I earn a small amount from qualifying purchases which helps pay for the upkeep of this website.